- 您现在的位置：买卖IC网 > PDF目录67756 > LMX2377UTMX/NOPB (NATIONAL SEMICONDUCTOR CORP) PLL FREQUENCY SYNTHESIZER, 2500 MHz, PDSO20 PDF资料下载
参数资料
| 型号： | LMX2377UTMX/NOPB |
| 厂商： | NATIONAL SEMICONDUCTOR CORP |
| 元件分类： | PLL合成/DDS/VCOs |
| 英文描述： | PLL FREQUENCY SYNTHESIZER, 2500 MHz, PDSO20 |
| 封装： | PLASTIC, TSSOP-20 |
| 文件页数： | 33/44页 |
| 文件大小： | 3181K |
| 代理商： | LMX2377UTMX/NOPB |
第1页第2页第3页第4页第5页第6页第7页第8页第9页第10页第11页第12页第13页第14页第15页第16页第17页第18页第19页第20页第21页第22页第23页第24页第25页第26页第27页第28页第29页第30页第31页第32页当前第33页第34页第35页第36页第37页第38页第39页第40页第41页第42页第43页第44页
2.0 Programming Description (Continued)
2.6.2 PD_POL Main
MAIN SYNTHESIZER PHASE DETECTOR POLARITY
Main R[17]
The PD_POL Main bit is used to control the Main synthesizer’s phase detector polarity based on the VCO tuning characteristics.
Control Bit
Register Location
Description
Function
01
PD_POL Main
Main R[17]
Main Phase Detector
Polarity
Main VCO Negative
Tuning
Characteristics
Main VCO Positive
Tuning
Characteristics
Main VCO Characteristics
20022682
2.6.3 ID
o Main
MAIN SYNTHESIZER CHARGE PUMP CURRENT GAIN
Main R[18]
The ID
o Main bit controls the Main synthesizer’s charge pump gain. Two current levels are available.
Control Bit
Register Location
Description
Function
01
ID
o Main
Main R[18]
Main Charge Pump
Current Gain
LOW
0.95 mA
HIGH
3.80 mA
2.6.4 TRI-STATE ID
o Main
MAIN SYNTHESIZER CHARGE PUMP TRI-STATE CURRENT
Main R[19]
The TRI-STATE ID
o Main bit allows the charge pump to be switched between a normal operating mode and a high impedance
output state. This happens asynchronously with the change in the TRI-STATE ID
o Main bit.
Furthermore, the TRI-STATE ID
o Main bit operates in conjuction with the PWDN Main bit to set a synchronous or an
asynchronous powerdown mode.
Control Bit
Register Location
Description
Function
01
TRI-STATE ID
o Main
Main R[19]
Main Charge Pump
TRI-STATE Current
Main Charge Pump
Normal Operation
Main Charge Pump
Output in High
Impedance State
LMX2377U
www.national.com
39
相关PDF资料 |
PDF描述 |
|---|---|
| LMX2377UTM/NOPB | PLL FREQUENCY SYNTHESIZER, 2500 MHz, PDSO20 |
| LMZ10504EXTTZX | 6.7 A SWITCHING REGULATOR, 1160 kHz SWITCHING FREQ-MAX, PSSO7 |
| LMZ10504EXTTZ | 6.7 A SWITCHING REGULATOR, 1160 kHz SWITCHING FREQ-MAX, PSSO7 |
| LMZ12003EXTTZE-ADJ | SWITCHING REGULATOR, PSSO7 |
| LMZ12003EXTTZX-ADJ | SWITCHING REGULATOR, PSSO7 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| LMX2410QM | 制造商:未知厂家 制造商全称:未知厂家 功能描述:RF/Baseband Circuit |
| LMX2411 | 制造商:NSC 制造商全称:National Semiconductor 功能描述:Baseband Processor for Radio Communications |
| LMX2411M | 制造商:未知厂家 制造商全称:未知厂家 功能描述:RF/Baseband Circuit |
| LMX2411MX | 制造商:未知厂家 制造商全称:未知厂家 功能描述:RF/Baseband Circuit |
| LMX2430 | 制造商:NSC 制造商全称:National Semiconductor 功能描述:PLLatinum Dual High Frequency Synthesizer for RF Personal Communications |
发布紧急采购，3分钟左右您将得到回复。